Seiko Cal. 5646 - 404

The 5646-404 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5646 caliber with 19j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-c560473c9d2c]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1979

Related Models

• Seiko 6672-434
• Seiko 5297-458
• Seiko 0788-921
• Seiko 7146-128
• Seiko 7195-201
• Seiko 6359-164
• Seiko 7186-937
• Seiko 5271-796
• Seiko 6240-389
• Seiko 6141-846
• Seiko 4539-302
• Seiko 7194-666