Seiko Cal. 4539 - 560

The 4539-560 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4539 caliber with 21j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-dd5779ebb62b]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1977

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