Seiko Cal. 4539 - 925

The 4539-925 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4539 caliber with 19j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-6335173ecbd3]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

9.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Green

Jewels

19j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1970

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