Seiko Cal. 6387 - 433

This Spring Drive model from 1971 features a 46mm Gold-Plated case. Powered by the 6387 caliber with 21j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-9f4f8c72044e]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

13.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Burgundy

Jewels

21j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1971

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