Seiko Cal. 5660 - 721

Seiko 5660-721

The 5660-721 is a sought-after Solar piece from Seiko's golden era. It features a Cream dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-1b9664ae4b41]

Also known as: Goldfeather

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
9.0mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
60m
Dial Color
Cream
Jewels
22j
Frequency
36,000 bph
Power Reserve
68 hours
Year
1979

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