Seiko Cal. 6644 - 366

The 6644-366 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6644 caliber with 26j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-1bc8470de6db]

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

15.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

26j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1966

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