Seiko Cal. 6641 - 116

This Hand-Winding model from 1975 features a 35mm Two-Tone case. Powered by the 6641 caliber with 21j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-97998b47d859]

Also known as: Sumo, Flighty

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1975

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