Seiko Cal. 0744 - 638

Seiko 0744-638

The Seiko 0744-638 represents an important milestone in Seiko's 1972 lineup. Powered by the 0744 caliber with 26j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-7f00ed7ad837]

Also known as: Sumo

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
39mm
Case Thickness
12.8mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
Silver
Jewels
26j
Frequency
36,000 bph
Power Reserve
64 hours
Year
1972

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seikata-wm-7f00ed7ad837