Seiko Cal. 7031 - 645

Seiko 7031-645

The 7031-645 is a sought-after Solar piece from Seiko's golden era. Powered by the 7031 caliber with 20j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-f1397af104f7]

Specifications

Movement
Solar
Case Material
Titanium
Case Width
45mm
Case Thickness
11.9mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
50m
Dial Color
Champagne
Jewels
20j
Frequency
36,000 bph
Power Reserve
53 hours
Year
1996

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