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 Mineral crystal and offers 70m of water resistance. [seikata-wm-02c6198cb38b]

Also known as: Shogun

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

22j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1971

Related Models

• Seiko 6393-442
• Seiko 7149-612
• Seiko 5688-279
• Seiko 4580-186
• Seiko 6293-211
• Seiko 5678-877
• Seiko 7022-930
• Seiko 4529-788
• Seiko 5695-631
• Seiko 5688-496
• Seiko 7140-336
• Seiko 7198-824