Seiko Cal. 7138 - 656

The Seiko 7138-656 represents an important milestone in Seiko's 1970 lineup. It features a Navy dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-5fca15c52dca]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Titanium

Case Width

35mm

Case Thickness

8.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

29j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1970

Related Models

• Seiko 5689-950
• Seiko 5667-717
• Seiko 4458-549
• Seiko 4524-331
• Seiko 0771-441
• Seiko 6138-126
• Seiko 5648-663
• Seiko 6652-139
• Seiko 4494-902
• Seiko 6129-249
• Seiko 7089-879
• Seiko 6643-412