Seiko Cal. 6632 - 728

This Spring Drive model from 1970 features a 46mm Two-Tone case. Powered by the 6632 caliber with 23j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-1c49876b1272]

Also known as: Monster, Panda

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Cream

Jewels

23j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1970

Related Models

• Seiko 4510-376
• Seiko 5698-571
• Seiko 4434-501
• Seiko 6672-550
• Seiko 7160-973
• Seiko 5630-705
• Seiko 7099-478
• Seiko 6623-798
• Seiko 6673-417
• Seiko 6154-748
• Seiko 5667-471
• Seiko 4561-160