Seiko Cal. 4521 - 389

The 4521-389 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4521 caliber with 21j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-11e7799f3a19]

Also known as: Turtle, Monster

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1997

Related Models

• Seiko 7198-671
• Seiko 6374-971
• Seiko 6127-767
• Seiko 6668-379
• Seiko 4550-794
• Seiko 6273-229
• Seiko 5291-682
• Seiko 4530-534
• Seiko 5251-371
• Seiko 4567-318
• Seiko 5616-880
• Seiko 7188-245