Seiko Cal. 6689 - 540

Released in 1984, the Cal. 6689 with design code 540 was part of Seiko's domestic market collection. It features a Green dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-ac696b608f38]

Also known as: Silverwave, Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Green

Jewels

29j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1984

Related Models

• Seiko 0781-140
• Seiko 5635-520
• Seiko 0788-503
• Seiko 6185-601
• Seiko 5246-212
• Seiko 3850-538
• Seiko 0770-683
• Seiko 3871-898
• Seiko 6658-950
• Seiko 0771-477
• Seiko 6654-685
• Seiko 0732-311