Seiko Cal. 6655 - 797

This Hand-Winding model from 1983 features a 40mm Two-Tone case. Powered by the 6655 caliber with 33j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-ac327f7777bf]

Also known as: Sumo, UFO

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1983

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