Seiko Cal. 6231 - 927

This Spring Drive model from 1998 features a 37mm Two-Tone case. With its 18mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-f9341931196b]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

White

Jewels

33j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1998

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