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Mass-produced#1 in familyOfficial press photos

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Mid-tier supplier movement · caliber Bremont Cal. BE-36AE: modified ETA 2836-2, Bremont-finished, 28,800bph, 42h PR, 25j; day-date display; used in MBII · 42h power reserve
Large case: suits wrists 7 in+ (18 cm+)
43 mm case. A bold, statement-size wear. Best suited to larger wrists where the case sits flush.

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Authentication

Martin-Baker MB logo on the dial and Armed Forces caseback text are both required; their absence indicates modified or non-genuine components.

Known issues in the market
  • The MB logo on the dial is an original design element; any MBII without the MB logo has a non-genuine or modified dial.
  • The "ARMED FORCES" caseback text is part of the original design; verify it is present and fully legible.
AreaWhat to checkWhat is correctRed flag
dialMartin-Baker MB logoMB logo present on the dial; correct font and positionMissing MB logo; non-genuine or modified dial
casebackArmed Forces textARMED FORCES text present and fully legible on the casebackMissing or partially legible Armed Forces text; wrong caseback
caseTrip-tick barrel alignmentMiddle barrel flush; no step or gapStep or gap at barrel join; incorrect reassembly
Common legitimate replacements
  • Leather or nylon strap; Bremont OEM.
  • Crystal; sapphire standard.
Expert resources: Bremont authorized service; Bremont MBII product documentation.

Authentication guide

Last reviewed June 2026

The MBII is Bremont's collaboration with Martin-Baker, the ejection seat manufacturer. The practical connection is largely commemorative; the watch is a pilot's instrument with a fully functioning flyback chronograph and the TRIP-TICK case. The MB stamp on the caseback is the collaboration marker.

Known reproduction risks

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HIGH RISK

Non-flyback chronograph presented as MBII (a standard ETA 7750 does not have flyback; it is a modification).

  • Flyback test: press the pusher while the chronograph is running; hand snaps to zero and restarts immediately if genuine flyback
  • A standard chrono that stops, then resets only when pusher held down, then restarts on a second push is not flyback
MEDIUM

Missing MB caseback stamp (post-service replacement with generic caseback).

  • MB collaboration stamp should be engraved; its absence does not definitively disprove authenticity, but warrants explanation

Dial variants by era

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EraDescriptionIdentifiers
2009 to presentPilot's watch with flyback chronograph; olive or black dial; TRIP-TICK case.
  • TRIP-TICK case with rotating middle section
  • "MB II" on dial; "BREMONT" at 12
  • Olive or black dial options
  • Flyback chronograph: a single pusher at 4 resets and restarts the chronograph
  • "100M" water resistance
  • Martin-Baker "BANG SEAT" or MB logo on dial or caseback

Service part flags

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Flyback Function

Original: Flyback: pressing the pusher at 4 o'clock mid-run resets and immediately restarts the chronograph.

Replacement tells
  • A chronograph that does not restart immediately after reset is not flyback; it may have been serviced incorrectly
  • Two-pusher operation (stop/reset/start) instead of single-pusher flyback indicates incorrect movement or service

Case back markings

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2009 to present
  • "BREMONT WATCH COMPANY"
  • "MBII" and model reference
  • Martin-Baker "MB" stamp or logo on caseback
  • Caliber designation (BE-54AE or flyback variant)
  • Serial number
  • "100M / 330FT"
  • "SWISS MADE"

Movement tells

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  • Flyback caliber (BE-54AE flyback modification of ETA 7750); the flyback coulisse and reset hammer are additional parts vs. standard 7750.
  • After service, flyback function test: start chronograph, press flyback pusher mid-run; hand should snap to zero and restart immediately.
  • MB caseback stamp should be present after service; a watchmaker who replaces the caseback without the MB stamp removes a provenance element.
Sources: Bremont official site; Martin-Baker MBII collaboration details.

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