Seiko Cal. 6139 - 971

Seiko 6139-971

The 6139-971 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6139 caliber with 31j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-f653d9d4b29f]

Also known as: Turtle, Helmet

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
46mm
Case Thickness
15.7mm
Lug Width
18mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
130m
Dial Color
Burgundy
Jewels
31j
Frequency
36,000 bph
Power Reserve
71 hours
Year
1980

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