Seiko Cal. 7181 - 521

Seiko 7181-521

This Solar model from 1990 features a 37mm Titanium case. Powered by the 7181 caliber with 35j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-40f3cbd59f0a]

Also known as: Sumo, Arnie

Specifications

Movement
Solar
Case Material
Titanium
Case Width
37mm
Case Thickness
9.8mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
30m
Dial Color
Burgundy
Jewels
35j
Frequency
28,800 bph
Power Reserve
48 hours
Year
1990

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