Seiko Cal. 6371 - 833

This Spring Drive model from 1985 features a 36mm Gold-Plated case. Powered by the 6371 caliber with 31j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-be7ed997c63a]

Also known as: Monster, World Timer

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

31j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1985

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