Seiko Cal. 4521 - 408

Released in 1971, the Cal. 4521 with design code 408 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-8c6388dc9fb5]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1971

Related Models

• Seiko 6140-914
• Seiko 5216-645
• Seiko 6363-810
• Seiko 5637-859
• Seiko 6620-766
• Seiko 4424-617
• Seiko 4412-884
• Seiko 7180-710
• Seiko 6691-475
• Seiko 7010-812
• Seiko 6618-764
• Seiko 6314-223