Seiko Cal. 3811 - 637

The 3811-637 is a sought-after Automatic piece from Seiko's golden era. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-fb86542738fe]

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

White

Jewels

26j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1968

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