Seiko Cal. 5618 - 317

Seiko 5618-317

The 5618-317 is a sought-after Solar piece from Seiko's golden era. Powered by the 5618 caliber with 21j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-0765efc9dd3e]

Also known as: Tuna

Specifications

Movement
Solar
Case Material
Titanium
Case Width
39mm
Case Thickness
15.7mm
Lug Width
21mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
Blue Sunburst
Jewels
21j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1986

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