Seiko Cal. 6648 - 380

The 6648-380 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6648 caliber with 25j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-0f09a25947a5]

Also known as: Tuna, Navigator

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1967

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