Seiko Cal. 6650 - 327

The 6650-327 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6650 caliber with 31j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-b655f5572bb7]

Also known as: Tuna, Rally

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1974

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