Seiko Cal. 6136 - 639

Seiko 6136-639

The 6136-639 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6136 caliber with 17j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-ef40304eb2cd]

Also known as: Bullhead

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
35mm
Case Thickness
14.6mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
120m
Dial Color
Green
Jewels
17j
Frequency
28,800 bph
Power Reserve
50 hours
Year
1996

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