Seiko Cal. 5640 - 283

The Seiko 5640-283 represents an important milestone in Seiko's 1969 lineup. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-1081bef360c4]

Also known as: Pogue

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Black

Jewels

33j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1969

Related Models

• Seiko 7144-614
• Seiko 3855-154
• Seiko 4462-498
• Seiko 4453-916
• Seiko 6616-504
• Seiko 6190-105
• Seiko 7095-491
• Seiko 6263-140
• Seiko 3811-671
• Seiko 3890-576
• Seiko 4598-678
• Seiko 0782-630