Seiko Cal. 3866 - 177

This Quartz model from 1977 features a 35mm Two-Tone case. It features a Green dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-72186445cc32]

Also known as: Helmet, Silverwave

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

35mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1977

Related Models

• Seiko 6341-256
• Seiko 6172-580
• Seiko 5635-994
• Seiko 0792-479
• Seiko 6281-216
• Seiko 7140-269
• Seiko 6217-850
• Seiko 6628-218
• Seiko 4575-765
• Seiko 6320-494
• Seiko 6186-247
• Seiko 7186-958