Seiko Cal. 5645 - 710

Seiko 5645-710

The 5645-710 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5645 caliber with 34j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-dbba311ec631]

Also known as: Monster, Navigator

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
40mm
Case Thickness
9.2mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
50m
Dial Color
Blue Sunburst
Jewels
34j
Frequency
28,800 bph
Power Reserve
41 hours
Year
1979

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