Seiko Cal. 0740 - 243

The 0740-243 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0740 caliber with 25j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-ba9936dac6d3]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Black

Jewels

25j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1999

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