Seiko Cal. 5688 - 290

The Seiko 5688-290 represents an important milestone in Seiko's 1990 lineup. It features a Black dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-09b037e6200b]

Also known as: Helmet, World Timer

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

37mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Black

Jewels

33j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1990

Related Models

• Seiko 5271-565
• Seiko 5694-596
• Seiko 6328-478
• Seiko 6685-318
• Seiko 6128-758
• Seiko 7013-953
• Seiko 0771-181
• Seiko 5662-163
• Seiko 5294-635
• Seiko 3891-248
• Seiko 4496-245
• Seiko 3887-472