Seiko Cal. 5231 - 168

This Spring Drive model from 1977 features a 44mm PVD Black case. Powered by the 5231 caliber with 24j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-a36be6b4153c]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

24j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1977

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