Seiko Cal. 3874 - 666

This Hand-Winding model from 1967 features a 41mm Two-Tone case. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-d96e248c9014]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1967

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