Seiko Cal. 4438 - 766

The Seiko 4438-766 represents an important milestone in Seiko's 1973 lineup. It features a Green dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-d38a1c1f23b8]

Also known as: Panda, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Green

Jewels

19j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1973

Related Models

• Seiko 7141-893
• Seiko 7111-999
• Seiko 5224-875
• Seiko 6179-586
• Seiko 6210-790
• Seiko 4518-585
• Seiko 5280-408
• Seiko 0742-370
• Seiko 6619-730
• Seiko 0725-519
• Seiko 7155-957
• Seiko 4521-233