Seiko Cal. 6231 - 692

This Spring Drive model from 1977 features a 35mm Stainless Steel case. It features a Black dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-c087a0b334b1]

Also known as: Turtle, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

13.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

32j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1977

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