Seiko Cal. 7034 - 631

The 7034-631 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7034 caliber with 19j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-0adbd8f820b0]

Also known as: Crown, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Burgundy

Jewels

19j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1987

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