Seiko Cal. 4487 - 604

Seiko 4487-604

This Quartz model from 1983 features a 37mm PVD Black case. Powered by the 4487 caliber with 22j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-27b4dee34a6b]

Also known as: Turtle, Navigator

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
37mm
Case Thickness
9.0mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
150m
Dial Color
Green
Jewels
22j
Frequency
21,600 bph
Power Reserve
65 hours
Year
1983

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