Seiko Cal. 3818 - 272

The Seiko 3818-272 represents an important milestone in Seiko's 1977 lineup. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-1c9bad55f328]

Also known as: Tuna, Arnie

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Burgundy

Jewels

30j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1977

Related Models

• Seiko 5673-191
• Seiko 6635-305
• Seiko 6649-839
• Seiko 0758-929
• Seiko 6148-415
• Seiko 6135-846
• Seiko 4436-174
• Seiko 7054-804
• Seiko 7072-353
• Seiko 3878-879
• Seiko 6280-104
• Seiko 4424-278