Seiko Cal. 6689 - 451

This Automatic model from 1978 features a 37mm Titanium case. Powered by the 6689 caliber with 27j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-3424088b3354]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

13.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1978

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