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Model review / Automatic winding

Navitimer B01: green dial, hidden vertical clutch

Watch passportSelect a specification for a plain-language explanation

Behind the green DB01381A1L1D1 dial is the B01 with a column wheel and vertical clutch. The automatic chronograph offers roughly 70 hours of reserve; steel and yellow gold combine in its 43mm case and bracelet.

Published 30 October 20263 min read
Navitimer B01 Chronograph 43 Watches of Switzerland
Breitling / Watches of Switzerland · Image source

The essentials first

In one minute

Case43mm; steel and 18k gold; 30m
CalibreBreitling Manufacture Caliber 01
Power reserveApprox. 70 h

Why it is interesting

This version’s strength is B01 engineering in a dressy green-and-gold execution. It makes sense if the chronograph will be used and the bracelet enjoyed daily.

Things to consider

30m water resistance limits use around water; assess the densely scaled dial’s readability in person.

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Breitling · Navitimer B01 Chronograph 43 Watches of Switzerland

The model in detail

A green dial and two-tone bracelet immediately move the Navitimer beyond a purely working-instrument image. Reference DB01381A1L1D1 is exclusive to the Watches of Switzerland Group, combining steel and 18k yellow gold. The authorised retailer’s UK catalogue showed £12,200 when checked. That figure does not calculate shipping or import costs for Uzbekistan.

Behind the dressy exterior is automatic Breitling Manufacture Caliber 01. A column wheel controls stopwatch switching, while a vertical clutch connects it to the movement. Imagine two contacting surfaces transmitting rotation: the clutch’s purpose becomes clearer. Breitling associates this construction with smooth chronograph operation. For a buyer, that is more meaningful than simply having extra buttons.

Another view of Navitimer DB01381A1L1D1 from the authorised retailer’s catalogue.Enlarge

Another view of Navitimer DB01381A1L1D1 from the authorised retailer’s catalogue.

© Breitling / Watches of Switzerland · Source

The B01 runs at 4Hz with approximately 70 hours of reserve. Friday evening to Monday morning is about 60 hours, so a fully wound watch should cover the interval. Partial winding reduces actual autonomy. COSC confirms compliance with chronometer requirements for the movement; it does not promise absolute accuracy in every condition.

Case diameter is 43mm and water resistance is 30m. The circular slide rule adds functionality and visual density: assess quick reading during a fitting. This Navitimer appeals as a mechanical stopwatch and a conspicuous bracelet watch. A 30m rating should not be treated as permission to swim at that depth; regular water activities call for a different choice.

Sources

Watches of Switzerland — DB01381A1L1D1www.watches-of-switzerland.co.ukBreitling — Manufacture Caliber 01 constructionwww.breitling.com