Seiko Cal. 6648 - 257

The 6648-257 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6648 caliber with 21j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-81af2638db4b]

Also known as: Crown

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

12.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1979

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