Seiko Cal. 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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