Seiko Cal. 5665 - 764

Seiko 5665-764

The 5665-764 is a sought-after Solar piece from Seiko's golden era. Powered by the 5665 caliber with 21j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-b78c9e385c7c]

Also known as: Turtle

Specifications

Movement
Solar
Case Material
PVD Black
Case Width
35mm
Case Thickness
12.3mm
Lug Width
19mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
40m
Dial Color
White
Jewels
21j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1996

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