Seiko Cal. 6645 - 520

The 6645-520 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6645 caliber with 24j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-2999f78e0bda]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1970

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