Seiko Cal. 7022 - 503

The 7022-503 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7022 caliber with 29j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-be30eaaf1b54]

Also known as: Tuna, Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1992

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