Seiko Cal. 6391 - 840

Seiko 6391-840

The 6391-840 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-7a982a5cd64d]

Also known as: Goldfeather, World Timer

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
42mm
Case Thickness
9.0mm
Lug Width
22mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Navy
Jewels
27j
Frequency
21,600 bph
Power Reserve
37 hours
Year
1990

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