Seiko Cal. 3826 - 731

This Solar model from 1971 features a 39mm Two-Tone case. The Fixed bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-8ee5123eaa01]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

39mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1971

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