Seiko Cal. 5640 - 730

Seiko 5640-730

This Solar model from 1998 features a 38mm Two-Tone case. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-660adf75f436]

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
38mm
Case Thickness
15.5mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
170m
Dial Color
Silver
Jewels
32j
Frequency
36,000 bph
Power Reserve
58 hours
Year
1998

Related Models

seikata-wm-660adf75f436