Seiko Cal. 4539 - 291

The 4539-291 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4539 caliber with 36j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-e2a4384a1b57]

Also known as: UFO, Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

13.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1996

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