Seiko Cal. 5221 - 637

The 5221-637 is a sought-after Solar piece from Seiko's golden era. It features a Green dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-ec47a64b0b42]

Also known as: Arnie

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

41mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Green

Jewels

32j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1972

Related Models

• Seiko 6121-948
• Seiko 4438-155
• Seiko 0798-228
• Seiko 6635-314
• Seiko 7015-183
• Seiko 7133-211
• Seiko 5640-621
• Seiko 5612-566
• Seiko 7014-766
• Seiko 7094-226
• Seiko 0737-103
• Seiko 6156-576