Seiko Cal. 6636 - 931

The 6636-931 is a sought-after Solar piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-994324ce6ce7]

Also known as: Silverwave, Crown

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1984

Related Models

• Seiko 7044-972
• Seiko 6119-206
• Seiko 4598-659
• Seiko 4467-694
• Seiko 0758-403
• Seiko 3813-772
• Seiko 7141-728
• Seiko 3882-816
• Seiko 3890-799
• Seiko 5692-297
• Seiko 6620-396
• Seiko 6150-550