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Tutima Glashütte, since 1927.

Tutima Glashütte — independent family manufacture. Founded 1927.

Chronograph 6450-03
Chronograph 6450-03 — detail
Chronograph 6450-03 — perspective
M2

Chronograph

Ref. 6450-03

46 mm Tutima Cal. 521 Automatic Reintitan perlgestrahlt

The Bundeswehr commissioned this chronograph in 1984.

€5,300

Recommended retail price in Germany incl. VAT. International pricing may vary.

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In 1984, Tutima was asked to build a chronograph for the German Air Force.

Why This Watch

The Bundeswehr commissioned this chronograph in 1984. Pearl-blasted titanium, mu-metal inner case, pushers flush with the case so nothing catches under flight gear. NATO acceptance certificate. It spent a week aboard the MIR space station. The German military still maintains two dedicated workshops just for repairing these watches. Titanium: lighter than steel and warm against the skin. The mu-metal shielding means it keeps time accurately next to laptops, phones, MRI equipment.

About This Watch

Functions: Date display. Hour, minute, small second. Chronograph 60-second counter, 60-minute counter and 12-hour counter. Center sweep second and minute counters. 24-hour display. Case details: Soft-iron inner case for protection from magnetic fields. Water-resistant 30 atm. Integrated push-buttons with a non-slip surface. Sapphire crystal anti-reflective. Screw-in crown. Screw-in case back.

Caliber

Caliber 521 assembly

Caliber 521

The Chronograph Module

Central minute hand — driven from the dial centre, not a subdial. Harder to engineer, rarely found in production chronographs. Patented in-house module. Elapsed minutes readable at a glance.

25 jewels 48h power reserve Patented central minute hand

74.8 m · One breath. Under ice. Guinness World Record.

— Tolga Taskin · M2 Pioneer · Weissensee 2020

Specifications

CaliberTutima Cal. 521
MovementAutomatic
Jewels25
Frequency4 Hz 28.800 A/h
Power Reserve48 h
FunctionsHours, minutes, small seconds, chronograph: central seconds and minutes counter, 12-hour totaliser, 24-hour display, date
Case Diameter46 mm
Case Height15.5 mm
Case MaterialReintitan perlgestrahlt
Water Resistance30 bar
Dialmatte schwarz
Strap / BraceletTitanium

Heritage

In 1984, the Bundeswehr selected Tutima's Ref. 798 as its official chronograph — NATO Stock Number 6645-12-194-8642. It flew aboard MIR, was flight-tested to 15 km altitude and 1,500 m. From German special forces to fighter cockpits, the 798 proved itself in the harshest conditions. The M2 Chronograph inherits this uncompromising instrument philosophy.

Stories

The NATO Chronograph Story

The NATO Chronograph Story

· 1984

The German Air Force needed a standard-issue pilot's chronograph. Tutima's answer: integrated pushers, anti-magnetic Lemania 5100, mu-metal shielding. NATO Stock Number 6645-12-194-8642. One went to the MIR space station.

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Kieler Woche: Racing, Time, and 100 Nautical Miles

Kieler Woche: Racing, Time, and 100 Nautical Miles

· 2005–present

Official Timekeeper of the Kieler Woche since 2005. Tutima's own racing yacht — a titanium-grey DK46, crewed entirely by women under skipper Kirsten Harmstorf. The crew has sailed together for fifteen years, from J24s to World Championships.

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Performance Professional

Performance Professional

Performance Professional BASELWORLD 2015 The robust M2 “Made in Glashütte” continues the tradition of the Tutima Military Chronograph—engineered for the toughest o…

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Independent voice

“If you ever see a Grand Seiko with a highly polished titanium case and bracelet: Tutima is in no way inferior. Maybe it's even better.”

— Ralf, Leuchtmasse Podcast (German watch collector, Dubai Watch Week, December 2025)

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