Seiko Cal. 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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