Seiko Cal. 7064 - 631

The 7064-631 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7064 caliber with 30j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-9553e3eff953]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

30j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1985

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