Seiko Cal. 6634 - 738

This Solar model from 1995 features a 40mm Gold-Plated case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-835e0db47617]

Also known as: Sumo, Bellmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

8.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1995

Related Models

• Seiko 7028-267
• Seiko 7112-302
• Seiko 3838-744
• Seiko 6261-615
• Seiko 6610-383
• Seiko 7198-864
• Seiko 6185-807
• Seiko 5630-504
• Seiko 4521-382
• Seiko 6127-860
• Seiko 6175-289
• Seiko 6167-880