Seiko Cal. 6381 - 637

The 6381-637 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6381 caliber with 22j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-7bb7fb1bf044]

Also known as: Goldfeather, Bellmatic

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

22j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1972

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