Seiko Cal. 5257 - 307

The 5257-307 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5257 caliber with 25j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-3ee53602ea3d]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

13.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

White

Jewels

25j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1999

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