Seiko Cal. 6331 - 197

This Solar model from 1965 features a 42mm Stainless Steel case. Powered by the 6331 caliber with 25j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-a123b9001858]

Also known as: Sea Horse, Crown

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1965

Related Models

• Seiko 5694-934
• Seiko 4414-712
• Seiko 5230-453
• Seiko 3843-872
• Seiko 6144-913
• Seiko 7028-170
• Seiko 6131-343
• Seiko 5631-523
• Seiko 7115-579
• Seiko 5221-382
• Seiko 4544-386
• Seiko 6134-975