Seiko Cal. 6628 - 704

This Solar model from 1975 features a 37mm PVD Black case. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-588ff206a94a]

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Cream

Jewels

35j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1975

Related Models

• Seiko 7197-559
• Seiko 6672-585
• Seiko 6325-699
• Seiko 5690-538
• Seiko 3845-223
• Seiko 7153-250
• Seiko 3883-474
• Seiko 4440-648
• Seiko 7147-400
• Seiko 4592-467
• Seiko 0738-898
• Seiko 6179-935