Seiko Cal. 7040 - 422

The 7040-422 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7040 caliber with 25j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-4f86e7891137]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Champagne

Jewels

25j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1969

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