Seiko Cal. 4521 - 934

The Seiko 4521-934 represents an important milestone in Seiko's 1975 lineup. With its 18mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-c95d13ae4628]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

31j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1975

Related Models

• Seiko 4424-518
• Seiko 5689-823
• Seiko 5258-215
• Seiko 6171-408
• Seiko 7128-160
• Seiko 6339-953
• Seiko 3866-210
• Seiko 7135-976
• Seiko 4538-171
• Seiko 5659-926
• Seiko 4484-187
• Seiko 5620-997