Seiko Cal. 6638 - 675

This Solar model from 1991 features a 42mm PVD Black case. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-6133b6d9ae99]

Also known as: Tuna, Arnie

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

42mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1991

Related Models

• Seiko 7075-395
• Seiko 4433-233
• Seiko 7135-739
• Seiko 4436-549
• Seiko 5221-357
• Seiko 6263-639
• Seiko 4519-924
• Seiko 7050-360
• Seiko 5695-556
• Seiko 0730-306
• Seiko 7122-323
• Seiko 6399-137