Seiko Cal. 6640 - 382

The 6640-382 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6640 caliber with 24j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-d0a7116d8983]

Also known as: Samurai, Navigator

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

15.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

24j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1985

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