Seiko Cal. 6635 - 631

The 6635-631 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6635 caliber with 26j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-0080c9b0b7da]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

26j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1993

Related Models

• Seiko 5652-319
• Seiko 0737-244
• Seiko 6268-398
• Seiko 7055-453
• Seiko 7080-246
• Seiko 5234-203
• Seiko 6258-645
• Seiko 6260-456
• Seiko 4525-130
• Seiko 0772-254
• Seiko 3846-702
• Seiko 7044-950