Seiko Cal. 6231 - 170

This Hand-Winding model from 1991 features a 39mm Two-Tone case. Powered by the 6231 caliber with 17j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-52710cdc77e5]

Also known as: Pogue, Navigator

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1991

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