Seiko Cal. 4487 - 508

This Spring Drive model from 1990 features a 41mm PVD Black case. Powered by the 4487 caliber with 27j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-69102ec26705]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

27j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1990

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