Seiko Cal. 6638 - 233

Seiko 6638-233

This Automatic model from 1989 features a 36mm Two-Tone case. With its 18mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-fa5041d61989]

Also known as: World Timer, Sea Horse

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
36mm
Case Thickness
11.4mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
180m
Dial Color
Green
Jewels
33j
Frequency
28,800 bph
Power Reserve
46 hours
Year
1989

Related Models

seikata-wm-fa5041d61989