Seiko Cal. 5257 - 370

The Seiko 5257-370 represents an important milestone in Seiko's 1971 lineup. With its 18mm lug width and 11.3mm profile, it sits comfortably on most wrists. [seikata-wm-804b03f97156]

Also known as: Golden Tuna, Arnie

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1971

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