Seiko Cal. 6633 - 707

This Spring Drive model from 1974 features a 45mm Stainless Steel case. Powered by the 6633 caliber with 29j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-cfa6e87ace36]

Also known as: Silverwave, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

13.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Navy

Jewels

29j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1974

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