Seiko Cal. 6221 - 138

Seiko 6221-138

The 6221-138 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6221 caliber with 24j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-fd120159ed9f]

Also known as: Bullhead

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
45mm
Case Thickness
8.4mm
Lug Width
19mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
140m
Dial Color
Silver
Jewels
24j
Frequency
21,600 bph
Power Reserve
37 hours
Year
1987

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