Seiko Cal. 3877 - 702

The Seiko 3877-702 represents an important milestone in Seiko's 1983 lineup. It features a Silver dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-ebed083e72cb]

Also known as: Tuna, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Silver

Jewels

19j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1983

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