Seiko Cal. 6689 - 331

The Seiko 6689-331 represents an important milestone in Seiko's 1969 lineup. It features a Green dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-87e6c4be4cc2]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Green

Jewels

27j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1969

Related Models

• Seiko 7116-483
• Seiko 5249-202
• Seiko 6361-440
• Seiko 6113-824
• Seiko 4462-276
• Seiko 0721-673
• Seiko 4411-767
• Seiko 6682-865
• Seiko 5240-532
• Seiko 7042-163
• Seiko 5697-173
• Seiko 6142-371