Seiko Cal. 4428 - 681

The 4428-681 is a sought-after Quartz piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-d29b371c5e1b]

Also known as: Silverwave, Golden Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

38mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1979

Related Models

• Seiko 5628-117
• Seiko 6133-899
• Seiko 6314-662
• Seiko 6646-289
• Seiko 0772-644
• Seiko 7128-513
• Seiko 4461-483
• Seiko 6254-112
• Seiko 7147-943
• Seiko 5254-118
• Seiko 6348-919
• Seiko 4593-964