Seiko Cal. 3891 - 406

This Spring Drive model from 1968 features a 45mm Titanium case. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-1135b9b60242]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1968

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