Seiko Cal. 3851 - 509

This Spring Drive model from 1967 features a 35mm Hardlex-Coated Steel case. Powered by the 3851 caliber with 36j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-3adf9b854930]

Also known as: Shogun

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

12.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Silver

Jewels

36j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1967

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