Seiko Cal. 4521 - 441

The 4521-441 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-5d0afe2e766f]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

13.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

26j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1968

Related Models

• Seiko 6630-309
• Seiko 5683-549
• Seiko 6117-696
• Seiko 4510-813
• Seiko 5250-646
• Seiko 6356-498
• Seiko 0716-324
• Seiko 6176-588
• Seiko 6661-732
• Seiko 6618-923
• Seiko 0779-371
• Seiko 5230-117