Seiko Cal. 6635 - 498

The 6635-498 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6635 caliber with 21j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-bc25041823cb]

Also known as: Turtle, Navigator

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1976

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