Seiko Cal. 3879 - 761

This Hand-Winding model from 1967 features a 37mm Gold-Plated case. It features a White dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-dc68318e2a5d]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

White

Jewels

26j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1967

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