Seiko Cal. 5650 - 399

The Seiko 5650-399 represents an important milestone in Seiko's 1978 lineup. It features a Silver dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-10be41b1e9f9]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

28j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1978

Related Models

• Seiko 4487-121
• Seiko 4485-337
• Seiko 6322-668
• Seiko 6652-969
• Seiko 6231-106
• Seiko 6266-934
• Seiko 4599-199
• Seiko 6244-463
• Seiko 3811-554
• Seiko 0769-134
• Seiko 7181-704
• Seiko 5247-725