Seiko Cal. 6630 - 659

This Spring Drive model from 1972 features a 40mm Two-Tone case. Powered by the 6630 caliber with 25j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-9c9a3bae14a8]

Also known as: Pogue, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

25j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1972

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