Seiko Cal. 6331 - 923

This Hand-Winding model from 1997 features a 45mm PVD Black case. Powered by the 6331 caliber with 22j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-14aadef5f71d]

Also known as: Turtle

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Burgundy

Jewels

22j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1997

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