Seiko Cal. 5684 - 690

The Seiko 5684-690 represents an important milestone in Seiko's 1965 lineup. It features a White dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-514ef57b3a9f]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1965

Related Models

• Seiko 3832-552
• Seiko 3810-526
• Seiko 0748-987
• Seiko 3841-753
• Seiko 6264-982
• Seiko 5654-786
• Seiko 4583-918
• Seiko 3816-205
• Seiko 0740-148
• Seiko 6131-423
• Seiko 7165-700
• Seiko 4450-821