Seiko Cal. 3874 - 664

The Seiko 3874-664 represents an important milestone in Seiko's 1968 lineup. It features a Green dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-92714f2c6cc1]

Also known as: Bellmatic, Crown

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Green

Jewels

29j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1968

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