Seiko Cal. 5643 - 438

Released in 1980, the Cal. 5643 with design code 438 was part of Seiko's domestic market collection. It features a Navy dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-658bcf998cb4]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1980

Related Models

• Seiko 5669-529
• Seiko 6131-493
• Seiko 6116-700
• Seiko 0741-255
• Seiko 7059-169
• Seiko 7174-709
• Seiko 6351-103
• Seiko 5273-269
• Seiko 7018-629
• Seiko 4592-938
• Seiko 4543-189
• Seiko 7110-929