Seiko Cal. 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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