Seiko Cal. 0717 - 743

The 0717-743 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0717 caliber with 23j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-8847d133e7f3]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1967

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