Seiko Cal. 3813 - 879

This Solar model from 1985 features a 37mm Two-Tone case. Powered by the 3813 caliber with 31j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-51be89d67ffc]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1985

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