Seiko Cal. 5640 - 246

The Seiko 5640-246 represents an important milestone in Seiko's 1965 lineup. It features a Champagne dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-f99fa8ce93c2]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

30m

Dial Color

Champagne

Jewels

30j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1965

Related Models

• Seiko 5698-163
• Seiko 7099-367
• Seiko 3834-649
• Seiko 6210-639
• Seiko 0746-125
• Seiko 6169-921
• Seiko 4436-617
• Seiko 6348-268
• Seiko 3828-626
• Seiko 7070-649
• Seiko 6372-984
• Seiko 4543-727