Seiko Cal. 6638 - 645

Seiko 6638-645

This Solar model from 1988 features a 36mm PVD Black case. The Fixed bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-9f430d3f87cc]

Also known as: Golden Tuna

Specifications

Movement
Solar
Case Material
PVD Black
Case Width
36mm
Case Thickness
11.4mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
170m
Dial Color
Silver
Jewels
35j
Frequency
21,600 bph
Power Reserve
52 hours
Year
1988

Related Models

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