Seiko Cal. 0742 - 486

The 0742-486 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0742 caliber with 23j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-535bc81f67f3]

Also known as: Helmet, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

White

Jewels

23j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1970

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