Seiko Cal. 6650 - 473

The 6650-473 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6650 caliber with 31j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-3fb340abf5ac]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1973

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