Seiko Cal. 5257 - 228

The Seiko 5257-228 represents an important milestone in Seiko's 1974 lineup. Powered by the 5257 caliber with 22j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-30e9f5046085]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

35mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Black

Jewels

22j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1974

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