Seiko Cal. 5618 - 312

Seiko 5618-312

The 5618-312 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5618 caliber with 28j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-8284c4251537]

Also known as: World Timer, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
15.0mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
80m
Dial Color
Green
Jewels
28j
Frequency
28,800 bph
Power Reserve
37 hours
Year
1999

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seikata-wm-8284c4251537