Seiko Cal. 3875 - 978

The Seiko 3875-978 represents an important milestone in Seiko's 1967 lineup. It features a Green dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-3ad168bca195]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Green

Jewels

26j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1967

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