Seiko Cal. 6631 - 396

The 6631-396 is a sought-after Automatic piece from Seiko's golden era. It features a White dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-3ea4a36aa2ba]

Also known as: Silverwave, Sea Horse

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

White

Jewels

34j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1968

Related Models

• Seiko 6383-217
• Seiko 6260-494
• Seiko 6273-283
• Seiko 5213-310
• Seiko 0779-792
• Seiko 4577-982
• Seiko 6188-924
• Seiko 5253-753
• Seiko 7126-609
• Seiko 4512-588
• Seiko 4495-797
• Seiko 7014-358