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Movement tier: unclassified · caliber Tutima Cal. 330: automatic, 25j, 38h PR · 38h power reserve
Medium-large: suits wrists 6.5 in+ (16.5 cm+)
41 mm case. Wears confidently on average to larger wrists. May overhang on slender builds.

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Authentication

The oversized onion crown is a pilot watch design requirement for the Grand Flieger; any example with a standard crown has had a crown replacement.

Known issues in the market
  • Onion crown replacement with a standard crown is a common modification on vintage and pre-owned pilot watches.
  • Type A Flieger dial must have correct Arabic numerals and minute track; verify against Grand Flieger Classic documentation.
AreaWhat to checkWhat is correctRed flag
crownOversized onion crown presenceLarge onion crown consistent with Grand Flieger Classic specificationStandard-size or non-onion crown; crown replacement
dialType A Flieger dial configurationArabic numerals, large Arabic minute track, 12 at top; consistent with Type A FliegerIncorrect dial configuration; non-genuine or wrong model dial
movementTutima cal. 330 architectureTutima cal. 330 automatic, 25 jewels, 38-hour power reserve, with a Tutima-branded rotorAn ETA or Sellita caliber in place of the cal. 330; service replacement movement
casebackTutima serial and referenceTutima serial and reference 6108-01 correctly engravedMissing or incorrect engravings; non-genuine caseback
Common legitimate replacements
  • Crown; Tutima OEM onion crown only.
  • Crystal; sapphire standard.
  • Strap; Tutima OEM leather or standard 22mm third-party.
Expert resources: Tutima authorized service; tutima.com Grand Flieger documentation.

Authentication guide

Last reviewed June 2026

The Grand Flieger Classic Automatic runs Tutima cal. 330, a 25-jewel automatic with a 38-hour power reserve, inside a 41mm pilot case rated to 200m. Genuine Glashütte address and pilot design heritage. The key authentication points are the movement, the dial layout and the caseback markings.

Known reproduction risks

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LOW

Not a reproduction target at this price. Misrepresentation of movement finishing is the practical risk.

  • Bare Sellita or ETA rotor without Tutima branding
  • Dial text quality inconsistent with Tutima production standard

Dial variants by era

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EraDescriptionIdentifiers
production to presentVelvet black dial with large Arabic numerals in pilot style, with day and date. No luminous bezel markings. Strong lume on hour markers and hands. Leather strap with a folding clasp.
  • "TUTIMA GLASHÜTTE" at 12
  • Pilot-style Arabic numerals, no Roman numerals or baton indices
  • Date window at 3
  • 41mm steel case
  • Day and date apertures

Service part flags

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Movement (Tutima cal. 330)

Original: Tutima cal. 330 automatic, 25 jewels, 38-hour power reserve. Rotor should show Tutima branding. Caseback inscription reads Tutima Glashütte with the caliber reference.

Replacement tells
  • An ETA or Sellita caliber fitted in place of the cal. 330 at service
  • Movement without Glashütte-style finishing on visible bridges

Case back markings

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production to present
  • Reference 6108-01
  • "TUTIMA GLASHÜTTE" and address
  • Tutima cal. 330 caliber designation
  • 200M water resistance
  • Serial number

Movement tells

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  • Cal. 330 power reserve is 38 hours. Below 32 hours from a full wind needs service.
  • Tutima does not publish a beat rate for the cal. 330, so a tick-per-second count is not a usable check here. Judge rate on a timegrapher instead.
Sources: Tutima Glashütte Grand Flieger product documentation.

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