Seiko Cal. 4539 - 443

The Seiko 4539-443 represents an important milestone in Seiko's 1987 lineup. Powered by the 4539 caliber with 35j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-026ebcce4485]

Also known as: Rally, Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Green

Jewels

35j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1987

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