Seiko Cal. 6363 - 855

Released in 1966, the Cal. 6363 with design code 855 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-8cf2dfb5a8cc]

Also known as: Tuna, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1966

Related Models

• Seiko 5639-992
• Seiko 5246-177
• Seiko 5239-777
• Seiko 5687-664
• Seiko 5642-516
• Seiko 7142-262
• Seiko 7037-780
• Seiko 5668-267
• Seiko 7014-859
• Seiko 6334-690
• Seiko 3864-931
• Seiko 6325-897