Seiko Cal. 6231 - 600

This Spring Drive model from 1969 features a 42mm Two-Tone case. Powered by the 6231 caliber with 33j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-76382241a7e0]

Also known as: Panda, Bullhead

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1969

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