Seiko Cal. 6644 - 703

Seiko 6644-703

The Seiko 6644-703 represents an important milestone in Seiko's 1975 lineup. Powered by the 6644 caliber with 30j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-3c14a7c52abc]

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
43mm
Case Thickness
11.3mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
110m
Dial Color
White
Jewels
30j
Frequency
36,000 bph
Power Reserve
40 hours
Year
1975

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