Seiko Cal. 4438 - 684

The 4438-684 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-f38fc49088a6]

Also known as: Goldfeather, Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1973

Related Models

• Seiko 5698-492
• Seiko 4579-720
• Seiko 3875-600
• Seiko 6121-463
• Seiko 7011-697
• Seiko 4487-363
• Seiko 5677-770
• Seiko 6359-960
• Seiko 4445-443
• Seiko 5684-589
• Seiko 4592-355
• Seiko 0747-550