Seiko Cal. 6391 - 441

The 6391-441 is a sought-after Kinetic piece from Seiko's golden era. It features a Burgundy dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-ee19812c75e8]

Also known as: Sumo, Helmet

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

19j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1965

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