Seiko Cal. 6647 - 451

The 6647-451 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6647 caliber with 33j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-7ba0deb74030]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1993

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