Seiko Cal. 4428 - 761

This Hand-Winding model from 1970 features a 35mm Two-Tone case. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-55e93a783408]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

14.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1970

Related Models

• Seiko 6687-829
• Seiko 7114-196
• Seiko 6375-113
• Seiko 7045-678
• Seiko 5640-469
• Seiko 3837-106
• Seiko 6383-956
• Seiko 6640-819
• Seiko 7122-708
• Seiko 6686-192
• Seiko 5697-429
• Seiko 6686-559