Name: Glashütte Original Senator Excellence Panorama Date Moon Phase 1-36-24-05-02-71
Brand: Glashütte Original
SKU: 1-36-24-05-02-71

The Senator Excellence Panorama Date Moon Phase (ref. 1-36-24-05-02-71) is Glashütte Original's symmetrical-dial flagship, a 42mm dress watch with the in-house caliber 36 manual-wind, a 100-hour power reserve, the brand's panorama big-date at six, and a moonphase aperture above. It is the reference Glashütte Original points to when the conversation turns to whether the brand belongs in the same finishing tier as A. Lange & Söhne; the cal. 36 is the answer the brand has chosen to make.

What it is

Glashütte Original introduced the Senator Excellence line in 2016 around the new caliber 36, a hand-wind movement with twin barrels (for stable torque across the 100-hour reserve), a free-sprung balance with four gold poising weights, and a Glashütte-traceable chronometer certification administered by the brand itself that exceeds COSC tolerances on both rate and precision. The caliber 36 family added an automatic variant shortly after; the manual-wind cal. 36 in the Panorama Date Moon Phase reference is the family's purest expression. Steel and gold case options ship; the silver-dial steel reference is the canonical buy at the family's accessible end, with white-gold and rose-gold variants extending into haute-end territory.

Buying notes

Common things to check: papers and the brand's chronometer certificate (the Senator Excellence ships with a Glashütte chronometer card, verify it matches the watch's serial; a missing card is a hard ask at this price tier); moonphase disc (gold-cap painted, can chip with decades of wear in the same wrist position, verify under loupe); big-date alignment (the panorama date is a two-disc construction, both digits should sit flush at the same plane; misaligned digits indicate a date-module service issue); caliber 36 (verify the four-gold-weight balance and the free-sprung adjustment through the sapphire case-back); case-material verification (steel, white-gold, and rose-gold trade at substantially different prices, verify hallmarks on the case-back); strap (factory Glashütte Original alligator with branded buckle is the standard).

Market read

Steel Senator Excellence Panorama Date Moon Phase examples trade in the $11,000-$15,000 range through 2025-2026, against a current retail of approximately $15,800. Gold variants trade meaningfully higher (mid-twenties to low-thirties depending on metal and dial). The reference has been one of the steadier Glashütte Original positions through the 2021-2022 spike and the correction, comp depth is moderate and pricing has been stable.

Cross-shopped against the Lange Saxonia or the Patek Calatrava 5226, the Senator Excellence sits at roughly half the price for movement finishing that watchmaker reviewers cite as a credible peer.

Service expectations

Service is Glashütte Original-direct through the brand's German service center or select authorized independents in the US, UK, and Japan. Expect 4-8 month turnaround and a low-to-mid-four-figure service bill. The caliber 36 is hand-finished and the twin-barrel architecture is robust; service intervals of 5-7 years are typical.

A recent factory service with the brand's certificate is worth meaningful money on resale at this price tier.

Editorial copy is AI-drafted from primary sources and reviewed by Grail Atlas before publication. Where the text is uncertain about a fact, it says so. Email corrections@grailatlas.com if something reads wrong. Signals on this page (community, OSINT) are clearly separated from the editorial sections.

Mass-produced#1 in family

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Movement tier: unclassified · caliber Glashütte Original Cal. 36: in-house automatic, 28,800bph, 42h PR; simple center-seconds movement with date; traditional German perlage and Glashütte stripes · 42h power reserve

Medium-large: suits wrists 6.5 in+ (16.5 cm+)

42 mm case. Wears confidently on average to larger wrists. May overhang on slender builds.

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Authentication

Sharp case finishing edges must be preserved; polishing removes the contrasting brushed/polished surfaces. Caseback Handwerkskunst engraving must be deep and present.

Known issues in the market

Polished case loses the sharp edge contrasts that define the Senator Excellence; any over-polished example has compromised finishing.
Handwerkskunst engraving on caseback is specific to the Senator Excellence; missing engraving is a non-genuine caseback.

Area	What to check	What is correct	Red flag
case	Brushed and polished surface contrasts	Sharp edges between brushed and polished surfaces; no rounding or blending from polishing	Rounded edges; blended surfaces; over-polished case losing original contrasts
caseback	Handwerkskunst engraving	Glashütte Original Handwerkskunst (craft art) engraving present and deep on caseback	Missing engraving; shallow engraving from polishing; non-genuine caseback
movement	Cal. 36 in-house architecture	Fully in-house Cal. 36 visible through caseback; Glashütte stripes and three-quarter plate	Non-Glashütte movement; no stripes; wrong architecture

Common legitimate replacements

Leather strap; Glashütte Original OEM alligator preferred.
Crystal; sapphire standard.

Expert resources: Glashütte Original Senator Excellence press materials. Cal. 36 technical documentation.

Authentication guide

Last reviewed June 2026

The Senator Excellence Panorama Date Moon Phase is GO's full-dress perpetual-adjacent piece: perpetual calendar indications in a classical Senator case. The moonphase disc at 6 o'clock and the panorama date at upper right are the two dial identity checks. Movement Cal. 36 features the governor-spring winding system visible through the caseback.

Known reproduction risks

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LOW

Outright replicas of the Senator Excellence PDMP are uncommon. The complex dial layout with moonphase at 6 o'clock is the quickest dial-level check.

Moonphase aperture not at 6 o'clock
Date aperture not at the upper right 12-to-1 position
Three-quarter plate absent through caseback
Glashütte ribbing without flat-polish quality between grooves

Dial variants by era

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Era	Description	Identifiers
2018 to present	Current production Senator Excellence PDMP in steel, rose gold, or white gold. 42mm. Silver, blue, or black dials with the full complication layout.	Panorama date aperture at the 12-to-1 o'clock zone Moonphase aperture at 6 o'clock with a blue sky disc Small seconds sub-dial at approximately 9 o'clock Power reserve indicator at approximately 3 o'clock "Senator Excellence" and "Glashütte Original" text on the dial Applied faceted indices in the Senator style No day-of-week or month displays -- this is a date, moonphase, and power reserve configuration

Service part flags

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Moonphase disc at 6 o'clock

Original: Deep blue sky aperture showing the moon disc at 6 o'clock. The Senator PDMP moon is at the lower center, distinct from the PanoMaticLunar placement at lower left. The disc advances one step per day.

Replacement tells

Moonphase aperture at any position other than 6 o'clock on a stated Senator PDMP
Moon disc imagery that is blurred or shows printing artifacts under loupe
Moonphase that does not advance correctly over multiple days

Governor-spring winding system via caseback

Original: Cal. 36 uses a governor-spring mechanism in the winding system visible through the exhibition caseback. The governor spring regulates winding torque. It appears as a spring element in the gear train visible from the back.

Replacement tells

Movement layout through caseback inconsistent with Cal. 36 -- absence of the governor-spring element in the winding train
Three-quarter plate absent from the movement
Glashütte ribbing absent or present only as machine approximation

Panorama date at upper right

Original: Two stacked discs at the 12-to-1 o'clock zone, jumping simultaneously at midnight. Identical panorama date mechanism shared across the GO Pano and Senator families.

Replacement tells

Date aperture at any other position on the dial
Two-step date advance rather than simultaneous jump
Disc alignment with vertical offset at the aperture

Case back markings

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2018 to present

Exhibition caseback displaying Cal. 36
Three-quarter plate with Glashütte ribbing visible
Governor-spring winding element visible in the gear train
"Glashütte Original" and "Made in Germany" on the movement
Reference and serial number on the case band
Steel or gold hallmark per case material

Movement tells

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Cal. 36 is GO's Senator-family movement. The three-quarter plate and Glashütte ribbing are the primary finishing tells shared with all genuine GO calibers.
The governor-spring winding system is a specific Cal. 36 feature. Its presence or absence is verifiable through the caseback by a knowledgeable observer.
Power reserve is approximately 42 hours. A Senator PDMP stopping before 35 hours when fully wound warrants service.
The panorama date mechanism should advance both discs simultaneously. Observing the midnight date change directly is the most reliable mechanism test.

Sources: Glashütte Original -- Senator Excellence caliber documentation; WatchTime -- GO Senator family movement analysis.