Seiko Cal. 4422 - 637

This Solar model from 1976 features a 43mm PVD Black case. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-ed0dce1a06be]

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

43mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Silver

Jewels

35j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1976

Related Models

• Seiko 5681-646
• Seiko 0785-814
• Seiko 6287-936
• Seiko 4577-655
• Seiko 7155-495
• Seiko 6620-843
• Seiko 5637-505
• Seiko 3870-965
• Seiko 5212-561
• Seiko 3883-598
• Seiko 4548-377
• Seiko 7049-343