Seiko Cal. 5640 - 592

Seiko 5640-592

The 5640-592 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5640 caliber with 23j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-f7937c7b6228]

Also known as: Golden Tuna

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
38mm
Case Thickness
9.5mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
160m
Dial Color
Green
Jewels
23j
Frequency
21,600 bph
Power Reserve
36 hours
Year
1984

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