Seiko Cal. 6660 - 535

Seiko 6660-535

The 6660-535 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6660 caliber with 27j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-95b63d80e6db]

Also known as: Sea Horse, Arnie

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
11.3mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
50m
Dial Color
Navy
Jewels
27j
Frequency
21,600 bph
Power Reserve
50 hours
Year
1966

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