Seiko Cal. 4539 - 340

The 4539-340 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4539 caliber with 35j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-b23a54b6043c]

Also known as: Samurai, Bullhead

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1992

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