Seiko Cal. 7142 - 638

The 7142-638 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7142 caliber with 34j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-3c20064bdaff]

Also known as: Tuna, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Burgundy

Jewels

34j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1989

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