Seiko Cal. 6391 - 144

The 6391-144 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6391 caliber with 20j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-9b3aaef5e7fc]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Champagne

Jewels

20j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1994

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