Seiko Cal. 5225 - 542

This Spring Drive model from 1991 features a 40mm Hardlex-Coated Steel case. Powered by the 5225 caliber with 35j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-c00b34030c80]

Also known as: Sumo, Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1991

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