Seiko Cal. 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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