Seiko Cal. 7135 - 638

The Seiko 7135-638 represents an important milestone in Seiko's 1980 lineup. Powered by the 7135 caliber with 19j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-3e06aa42e7b0]

Also known as: Silverwave

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1980

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