Seiko Cal. 6641 - 178

This Hand-Winding model from 1970 features a 44mm Two-Tone case. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-cafd262b05ee]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

36j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1970

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