Seiko Cal. 7140 - 783

The 7140-783 is a sought-after Kinetic piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-913f112c8ad7]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

Green

Jewels

32j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1975

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