Seiko Cal. 4528 - 837

Seiko 4528-837

Released in 1982, the Cal. 4528 with design code 837 was part of Seiko's domestic market collection. With its 19mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-80d48c6019b8]

Also known as: Sumo, Bullhead

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
37mm
Case Thickness
10.2mm
Lug Width
19mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
170m
Dial Color
Green
Jewels
23j
Frequency
36,000 bph
Power Reserve
41 hours
Year
1982

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seikata-wm-80d48c6019b8