Seiko Cal. 4425 - 991

Released in 1981, the Cal. 4425 with design code 991 was part of Seiko's domestic market collection. It features a Green dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-4757c44c0ed2]

Also known as: Emperor

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1981

Related Models

• Seiko 0724-814
• Seiko 0762-732
• Seiko 5632-927
• Seiko 7023-284
• Seiko 3898-601
• Seiko 4528-941
• Seiko 5687-563
• Seiko 6236-915
• Seiko 6333-877
• Seiko 5618-590
• Seiko 7160-930
• Seiko 7034-185