Seiko Cal. 6644 - 362

The Seiko 6644-362 represents an important milestone in Seiko's 1985 lineup. Powered by the 6644 caliber with 32j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-88458a6a0575]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Silver

Jewels

32j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1985

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