Seiko Cal. 6140 - 738

This Spring Drive model from 1971 features a 34mm Two-Tone case. It features a Burgundy dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-9aa2e65ca8ab]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1971

Related Models

• Seiko 0789-797
• Seiko 5668-182
• Seiko 5286-996
• Seiko 3876-558
• Seiko 5279-108
• Seiko 5260-245
• Seiko 7093-985
• Seiko 7016-314
• Seiko 5669-320
• Seiko 0760-980
• Seiko 4574-633
• Seiko 7090-917