Seiko Cal. 6391 - 509

This Solar model from 1984 features a 37mm Two-Tone case. It features a Silver dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-3974c74af254]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

13.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

20j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1984

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