Seiko Cal. 6331 - 312

The Seiko 6331-312 represents an important milestone in Seiko's 1973 lineup. With its 22mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-514424ce4035]

Also known as: Shogun, Rally

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Cream

Jewels

27j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1973

Related Models

• Seiko 7021-127
• Seiko 3856-563
• Seiko 6249-277
• Seiko 4496-405
• Seiko 6689-850
• Seiko 6656-239
• Seiko 4544-235
• Seiko 6120-229
• Seiko 7163-315
• Seiko 0796-184
• Seiko 3828-902
• Seiko 5277-342