Seiko Cal. 7139 - 623

Seiko 7139-623

The 7139-623 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7139 caliber with 27j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-fbe1f74d5e6b]

Also known as: Turtle, Flighty

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
44mm
Case Thickness
12.4mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
120m
Dial Color
Navy
Jewels
27j
Frequency
28,800 bph
Power Reserve
42 hours
Year
1986

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