Seiko Cal. 6648 - 138

This Solar model from 1972 features a 40mm PVD Black case. Powered by the 6648 caliber with 24j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-c1f1bd7cb064]

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

Black

Jewels

24j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1972

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