Seiko Cal. 5247 - 287

The 5247-287 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5247 caliber with 31j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-c31e4e2d94a0]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1968

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