Seiko Cal. 5645 - 257

The Seiko 5645-257 represents an important milestone in Seiko's 1992 lineup. It features a Green dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-d96e7e0add0a]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1992

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