Seiko Cal. 7198 - 635

The 7198-635 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7198 caliber with 23j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-bd1accec7ca5]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1965

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