Seiko Cal. 0738 - 647

Seiko 0738-647

The 0738-647 is a sought-after Solar piece from Seiko's golden era. Powered by the 0738 caliber with 21j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-ed064a7ad6f9]

Also known as: Sumo

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
35mm
Case Thickness
8.0mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
70m
Dial Color
Green
Jewels
21j
Frequency
28,800 bph
Power Reserve
70 hours
Year
1971

Related Models

seikata-wm-ed064a7ad6f9