Seiko Cal. 7139 - 723

Seiko 7139-723

The 7139-723 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7139 caliber with 23j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-5bc8da56a5c9]

Also known as: Golden Tuna

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
12.9mm
Lug Width
21mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
90m
Dial Color
White
Jewels
23j
Frequency
36,000 bph
Power Reserve
49 hours
Year
1998

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