Seiko Cal. 6644 - 615

The 6644-615 is a sought-after Kinetic piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-00c6a12c1579]

Also known as: Sumo, Bellmatic

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Green

Jewels

32j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1966

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