Seiko Cal. 3810 - 778

This Solar model from 1975 features a 38mm Gold-Plated case. Powered by the 3810 caliber with 20j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-b400f2c59b57]

Also known as: Sumo, Sea Horse

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

20j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1975

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