Seiko Cal. 4521 - 692

The Seiko 4521-692 represents an important milestone in Seiko's 1971 lineup. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-cbb4d5b38032]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Burgundy

Jewels

31j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1971

Related Models

• Seiko 4558-858
• Seiko 4485-698
• Seiko 3885-560
• Seiko 6126-807
• Seiko 4519-942
• Seiko 4478-999
• Seiko 4459-883
• Seiko 4558-315
• Seiko 6259-905
• Seiko 4436-754
• Seiko 3825-175
• Seiko 7135-467