Seiko Cal. 6138 - 566

Seiko 6138-566

The 6138-566 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6138 caliber with 31j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-6b773865effc]

Also known as: Bellmatic

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
44mm
Case Thickness
13.5mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
90m
Dial Color
Cream
Jewels
31j
Frequency
28,800 bph
Power Reserve
71 hours
Year
1994

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