Seiko Cal. 3811 - 503

This Hand-Winding model from 1972 features a 41mm Two-Tone case. Powered by the 3811 caliber with 31j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-4954ee7cfceb]

Also known as: Shogun, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

12.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1972

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