Seiko Cal. 4538 - 358

Seiko 4538-358

This Solar model from 1991 features a 40mm Hardlex-Coated Steel case. With its 20mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-c040a9141cdf]

Also known as: Sumo, Baby Tuna

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
9.5mm
Lug Width
20mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
80m
Dial Color
Blue Sunburst
Jewels
31j
Frequency
36,000 bph
Power Reserve
46 hours
Year
1991

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