Seiko Cal. 6378 - 509

This Spring Drive model from 1984 features a 38mm Gold-Plated case. Powered by the 6378 caliber with 25j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-f35a76089e56]

Also known as: Goldfeather, Navigator

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Silver

Jewels

25j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1984

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