Seiko Cal. 4521 - 122

This Spring Drive model from 1965 features a 37mm Stainless Steel case. Powered by the 4521 caliber with 36j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-a3b60cd96a47]

Also known as: Samurai, Arnie

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

13.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Champagne

Jewels

36j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1965

Related Models

• Seiko 3856-614
• Seiko 5260-361
• Seiko 6666-931
• Seiko 0777-699
• Seiko 3878-840
• Seiko 6184-190
• Seiko 3813-971
• Seiko 5283-299
• Seiko 4451-690
• Seiko 4496-166
• Seiko 6158-916
• Seiko 6368-765