Seiko Cal. 5649 - 681

Seiko 5649-681

This Hand-Winding model from 1980 features a 40mm Two-Tone case. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-5e72c7e00832]

Also known as: Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
40mm
Case Thickness
13.0mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
White
Jewels
20j
Frequency
28,800 bph
Power Reserve
68 hours
Year
1980

Related Models

seikata-wm-5e72c7e00832