Omega Speedmaster Broad Arrow White Gold / Enamel Ref. 3657.20.31

The Omega Speedmaster Broad Arrow White Gold / Enamel 3657.20.31 has a 42 mm white gold case, and is water resistant to 100 metres.

The Omega Speedmaster 'Enamel Limited Series' was introduced in 2002 in celebration of Omega's new self-winding chronograph movement caliber 3303 - seen in this model as the luxurious 3320. A series of 99 pieces each was made in white, yellow and red gold, all featuring an enamel dial with painted numerals and the signature 'Broad Arrow' hands. Reference 3657.20.31 has a white gold case.

Diameter: 42 mm
Water resistance: 100 m
Case: White Gold
Released: 2002
Movement: Omega caliber 3320

Specifications

Case and dimensions

Case diameter: 42 mm
Lug width: 20 mm
Case shape: Round
Case material: White Gold
Crystal: Sapphire
Case back: Open
Water resistance: 100 m

Dial

Dial colour: White
Dial material: Enamel
Indexes: Arabic Numerals
Hands: Arrow

Movement

Calibre: Omega caliber 3320
Movement maker: Omega
Movement type: Automatic
Display: Analog
Power reserve: 55 h
Frequency: 28800 vph
Jewels: 33
Movement diameter: 27 mm
Complications: Chronograph, Column wheel, Date, Hours, Minutes and Small Seconds