Seiko Cal. 6387 - 218

Released in 1985, the Cal. 6387 with design code 218 was part of Seiko's domestic market collection. Powered by the 6387 caliber with 21j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-c31a69a1e87c]

Also known as: Helmet, UFO

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1985

Related Models

• Seiko 4440-801
• Seiko 7094-751
• Seiko 5640-742
• Seiko 5619-520
• Seiko 3867-263
• Seiko 7198-476
• Seiko 4440-328
• Seiko 6643-890
• Seiko 6217-796
• Seiko 4522-531
• Seiko 5284-669
• Seiko 6328-803