Seiko Cal. 6646 - 746

The 6646-746 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6646 caliber with 25j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-79140245b722]

Also known as: Navigator, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

25j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1994

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