Seiko Cal. 4420 - 697

The Seiko 4420-697 represents an important milestone in Seiko's 1971 lineup. It features a Navy dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-999d2f184687]

Also known as: Bullhead, Emperor

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

70m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1971

Related Models

• Seiko 6668-257
• Seiko 5649-796
• Seiko 6615-117
• Seiko 4549-485
• Seiko 6611-919
• Seiko 6631-170
• Seiko 6289-841
• Seiko 5223-295
• Seiko 4445-671
• Seiko 7157-827
• Seiko 3868-642
• Seiko 0711-118