Seiko Cal. 7039 - 638

Seiko 7039-638

The 7039-638 is a sought-after Solar piece from Seiko's golden era. Powered by the 7039 caliber with 31j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-6edad889e145]

Also known as: Baby Tuna

Specifications

Movement
Solar
Case Material
PVD Black
Case Width
42mm
Case Thickness
15.6mm
Lug Width
20mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
160m
Dial Color
Cream
Jewels
31j
Frequency
28,800 bph
Power Reserve
64 hours
Year
1972

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