Seiko Cal. 6638 - 300

Seiko 6638-300

The 6638-300 is a sought-after Solar piece from Seiko's golden era. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-b00b2acd9ec7]

Also known as: Bullhead, World Timer

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
15.0mm
Lug Width
20mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
150m
Dial Color
Champagne
Jewels
34j
Frequency
36,000 bph
Power Reserve
52 hours
Year
1973

Related Models

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