Seiko Cal. 0743 - 423

Released in 1971, the Cal. 0743 with design code 423 was part of Seiko's domestic market collection. Powered by the 0743 caliber with 36j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-8daf7cb747b4]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Silver

Jewels

36j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1971

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