Seiko Cal. 6231 - 385

This Spring Drive model from 1988 features a 42mm PVD Black case. Powered by the 6231 caliber with 19j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-10ae0f77c546]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

8.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Silver

Jewels

19j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1988

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