Seiko Cal. 6644 - 840

This Kinetic model from 1973 features a 45mm Gold-Plated case. Powered by the 6644 caliber with 35j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-e51d9638f0db]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1973

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