Seiko Cal. 6391 - 263

The 6391-263 is a sought-after Solar piece from Seiko's golden era. It features a Green dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-7f09cc46abbd]

Also known as: Turtle, World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

44mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Green

Jewels

27j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1971

Related Models

• Seiko 6666-789
• Seiko 6666-262
• Seiko 5651-970
• Seiko 5640-449
• Seiko 6149-648
• Seiko 6663-193
• Seiko 6627-687
• Seiko 7117-656
• Seiko 6680-111
• Seiko 3832-264
• Seiko 0724-486
• Seiko 0794-502