Seiko Cal. 6636 - 815

Seiko 6636-815

The 6636-815 is a sought-after Solar piece from Seiko's golden era. Powered by the 6636 caliber with 29j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-0e8e685838a9]

Also known as: Sea Horse

Specifications

Movement
Solar
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
10.7mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
60m
Dial Color
Green
Jewels
29j
Frequency
28,800 bph
Power Reserve
65 hours
Year
1991

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