Seiko Cal. 6318 - 422

Released in 1981, the Cal. 6318 with design code 422 was part of Seiko's domestic market collection. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-dd24dfe1208e]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1981

Related Models

• Seiko 3887-636
• Seiko 6618-810
• Seiko 6656-375
• Seiko 5299-380
• Seiko 6251-187
• Seiko 7052-808
• Seiko 7027-134
• Seiko 3871-128
• Seiko 6147-224
• Seiko 4449-441
• Seiko 5292-968
• Seiko 6145-529