Seiko Cal. 5243 - 615

The 5243-615 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5243 caliber with 20j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-72f4a6e63eb6]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

8.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Black

Jewels

20j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1966

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