Seiko Cal. 5649 - 381

The 5649-381 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5649 caliber with 29j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-b017a44c823f]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1974

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