Seiko Cal. 6618 - 680

This Automatic model from 1979 features a 45mm PVD Black case. Powered by the 6618 caliber with 23j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-7848fc3fd1dc]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

110m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1979

Related Models

• Seiko 4574-551
• Seiko 6652-640
• Seiko 6213-223
• Seiko 4461-119
• Seiko 3823-445
• Seiko 6323-529
• Seiko 7123-269
• Seiko 7061-366
• Seiko 6231-565
• Seiko 6171-762
• Seiko 6187-169
• Seiko 3813-355