Seiko Cal. 3870 - 500

This Solar model from 1966 features a 34mm Stainless Steel case. Powered by the 3870 caliber with 27j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-37989747fbf1]

Also known as: Monster, Golden Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

27j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1966

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