Seiko Cal. 5689 - 646

This Spring Drive model from 1990 features a 42mm PVD Black case. Powered by the 5689 caliber with 28j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-b987f32158cc]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

8.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Cream

Jewels

28j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1990

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