Seiko Cal. 7163 - 990

The 7163-990 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7163 caliber with 24j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-131563172495]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1990

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