Seiko Cal. 6644 - 233

The 6644-233 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6644 caliber with 36j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-d68b70ddb19a]

Also known as: Tuna, Rally

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

White

Jewels

36j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1969

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