Seiko Cal. 3810 - 731

The Seiko 3810-731 represents an important milestone in Seiko's 1968 lineup. It features a Navy dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-e1671ed743da]

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

37mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1968

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