Seiko Cal. 0742 - 346

The 0742-346 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0742 caliber with 17j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-4d4ff72bc73c]

Also known as: Helmet, World Timer

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

14.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

White

Jewels

17j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1977

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