Seiko Cal. 4423 - 681

The Seiko 4423-681 represents an important milestone in Seiko's 1988 lineup. It features a Cream dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-c6f19fc93d2a]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

23j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1988

Related Models

• Seiko 6355-818
• Seiko 7047-671
• Seiko 5299-443
• Seiko 6264-624
• Seiko 6689-485
• Seiko 6182-212
• Seiko 7134-289
• Seiko 6639-946
• Seiko 4419-903
• Seiko 5664-463
• Seiko 3877-375
• Seiko 3846-130