Seiko Cal. 5257 - 717

The Seiko 5257-717 represents an important milestone in Seiko's 1990 lineup. Powered by the 5257 caliber with 26j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-443956732f1f]

Also known as: Tuna, Bullhead

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Champagne

Jewels

26j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1990

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