Seiko Cal. 4561 - 339

The 4561-339 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4561 caliber with 31j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-b7a2fc0f8b73]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1987

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