Seiko Cal. 5638 - 133

Seiko 5638-133

This Hand-Winding model from 1999 features a 40mm Hardlex-Coated Steel case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-7a6376f3e39e]

Also known as: Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
12.5mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
120m
Dial Color
Cream
Jewels
18j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1999

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seikata-wm-7a6376f3e39e