Seiko Cal. 3876 - 991

This Quartz model from 1965 features a 37mm Gold-Plated case. Powered by the 3876 caliber with 24j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-82a03dacad6d]

Also known as: Helmet, World Timer

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1965

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