Seiko Cal. 4487 - 641

Seiko 4487-641

This Solar model from 1993 features a 37mm Titanium case. Powered by the 4487 caliber with 26j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-f23df5b6e8f3]

Specifications

Movement
Solar
Case Material
Titanium
Case Width
37mm
Case Thickness
9.7mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
Burgundy
Jewels
26j
Frequency
28,800 bph
Power Reserve
45 hours
Year
1993

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