Seiko Cal. 6238 - 831

The Seiko 6238-831 represents an important milestone in Seiko's 1973 lineup. Powered by the 6238 caliber with 21j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-f8f4da7486b7]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

8.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Champagne

Jewels

21j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1973

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