Seiko Cal. 4539 - 639

Seiko 4539-639

The Seiko 4539-639 represents an important milestone in Seiko's 1980 lineup. Powered by the 4539 caliber with 27j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-5753c72c6501]

Also known as: Tuna, Arnie

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
45mm
Case Thickness
13.8mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
30m
Dial Color
Blue Sunburst
Jewels
27j
Frequency
21,600 bph
Power Reserve
71 hours
Year
1980

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seikata-wm-5753c72c6501