Seiko Cal. 7090 - 731

Seiko 7090-731

The 7090-731 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7090 caliber with 24j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-1b0872bb5ab6]

Also known as: Monster

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
40mm
Case Thickness
12.2mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
200m
Dial Color
Burgundy
Jewels
24j
Frequency
28,800 bph
Power Reserve
56 hours
Year
1965

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