Seiko Cal. 7159 - 638

The 7159-638 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7159 caliber with 25j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-eb2ce659f28c]

Also known as: Navigator, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

14.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

White

Jewels

25j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1966

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