Seiko Cal. 6231 - 424

This Hand-Winding model from 1977 features a 41mm Two-Tone case. With its 22mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-c9b860f9427f]

Also known as: Tuna, Flighty

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

9.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Navy

Jewels

18j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1977

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