Seiko Cal. 3872 - 680

The Seiko 3872-680 represents an important milestone in Seiko's 1971 lineup. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-7a45455bc47f]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

45mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1971

Related Models

• Seiko 0765-889
• Seiko 3879-415
• Seiko 7031-640
• Seiko 3810-940
• Seiko 6349-853
• Seiko 7054-164
• Seiko 6396-770
• Seiko 5669-799
• Seiko 7191-160
• Seiko 3870-828
• Seiko 3853-248
• Seiko 4599-697