Seiko Cal. 5657 - 890

Released in 1978, the Cal. 5657 with design code 890 was part of Seiko's domestic market collection. It features a White dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-fae46abb0037]

Also known as: Sumo, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

13.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

White

Jewels

24j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1978

Related Models

• Seiko 3885-708
• Seiko 6367-209
• Seiko 4487-712
• Seiko 0794-251
• Seiko 0796-948
• Seiko 4429-487
• Seiko 4463-179
• Seiko 6183-283
• Seiko 5295-782
• Seiko 6614-563
• Seiko 0734-217
• Seiko 5612-432