Omega Speedmaster ’57 Co-Axial Chronometer Chronograph 41.5 mm Black Dial (331.22.42.51.01.001)

Description

The OMEGA Speedmaster is one of OMEGA’s most iconic timepieces. Having been a part of all six lunar missions, the legendary Speedmaster is an impressive representation of the brand’s adventurous pioneering spirit.

This model features a black dial with a seconds sub-dial at 9 o’clock and a 12-hour and 60-minute chronograph recorder on the sub-dial at 3 o’clock. There is a central chronograph seconds hand and a date window at the 6 o’clock position. A scratch-resistant sapphire crystal protects this bold dial. The 18K red gold bezel, with its tachymeter scale, is mounted on a 41.50 mm stainless steel casebody and presented on a brown leather strap.

At the heart of this timepiece is the OMEGA Co-Axial calibre 9300, the first chronograph in the brand’s family of in-house Co-Axial mechanical movements.

Features

• Chronograph

  The chronograph function is a mechanism for measuring time intervals. A can therefore be used to time events while displaying the time like any traditional watch.

• Chronometer

  Label given to a watch which has undergone precision tests and received a certificate from an official body (COSC).

• Date

  The day of the month, displayed in a window on a watch dial at the 3 or 6 o’clock position, or within a subdial at 9 o’clock.

• Small seconds

  A hand on a sub-dial which tracks seconds typically it completes a full rotation in one minute.

• Tachymeter

  A tachymeter watch has a function for measuring speed. It is a chronograph with a graduated dial on which speed can be read in kilometres per hour based on a 1000 metre distance.

• Time zone function

  Allows the hour hand to be easily adjusted to different time zones without stopping the watch.

• Transparent case back

  A transparent case back – frequently made of sapphire – makes it possible to see the movement inside the watch.

Technical Data

• Between lugs: 20mm
• Bracelet: leather strap
• Case: Steel ‑ red gold
• Case diameter: 41.5mm
• Dial color: Black
• Crystal: Scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides
• Water resistance: 10 bar (100metres / 330 feet)
• Movement type: Self winding

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