Seiko Cal. 6391 - 310

The 6391-310 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Cream dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-386576c23187]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1995

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