Seiko Cal. 6677 - 691

This Spring Drive model from 1984 features a 40mm Titanium case. Powered by the 6677 caliber with 22j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-a0eefa50d1e7]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1984

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