Seiko Cal. 5630 - 688

The 5630-688 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5630 caliber with 21j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-ed991225dec1]

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Champagne

Jewels

21j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1971

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