Seiko Cal. 6618 - 413

This Hand-Winding model from 1978 features a 36mm Two-Tone case. It features a Black dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-7095ea93dfed]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

80m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1978

Related Models

• Seiko 7033-565
• Seiko 7137-944
• Seiko 0722-480
• Seiko 6692-633
• Seiko 7143-187
• Seiko 3820-153
• Seiko 4489-725
• Seiko 7136-748
• Seiko 5661-664
• Seiko 5694-513
• Seiko 4490-993
• Seiko 4433-104