Seiko Cal. 6661 - 262

This Spring Drive model from 1978 features a 41mm Titanium case. It features a Black dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-4d4eddb7e47c]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

36j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1978

Related Models

• Seiko 5278-726
• Seiko 0768-329
• Seiko 0743-145
• Seiko 0727-338
• Seiko 4547-246
• Seiko 5250-699
• Seiko 5689-539
• Seiko 6685-585
• Seiko 5216-987
• Seiko 6253-908
• Seiko 4434-706
• Seiko 6132-977