Seiko Cal. 5677 - 646

This Hand-Winding model from 1997 features a 38mm Two-Tone case. Powered by the 5677 caliber with 18j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-6021f1a3185f]

Also known as: UFO, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

80m

Dial Color

Champagne

Jewels

18j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1997

Related Models

• Seiko 4561-899
• Seiko 7182-726
• Seiko 6236-700
• Seiko 5273-418
• Seiko 6294-745
• Seiko 7086-960
• Seiko 0739-609
• Seiko 3850-685
• Seiko 5210-846
• Seiko 6260-742
• Seiko 5616-133
• Seiko 4563-607