Seiko Cal. 5231 - 257

The Seiko 5231-257 represents an important milestone in Seiko's 1997 lineup. Powered by the 5231 caliber with 25j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-bba34f2a16a8]

Also known as: Golden Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Champagne

Jewels

25j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1997

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