Seiko Cal. 6648 - 380

The Seiko 6648-380 represents an important milestone in Seiko's 1983 lineup. Powered by the 6648 caliber with 24j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-7d6d29577892]

Also known as: Turtle, Sumo

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1983

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