Seiko Cal. 3891 - 310

The 3891-310 is a sought-after Automatic piece from Seiko's golden era. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-763050c91c84]

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1972

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