Seiko Cal. 3877 - 510

This Spring Drive model from 1968 features a 43mm Titanium case. The Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-3f9d00d2c4d3]

Also known as: Bellmatic, Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1968

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