Seiko Cal. 3817 - 903

Seiko 3817-903

The Seiko 3817-903 represents an important milestone in Seiko's 1978 lineup. It features a Black dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-84c462f70b7e]

Also known as: Monster, Rally

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
34mm
Case Thickness
12.8mm
Lug Width
18mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
50m
Dial Color
Black
Jewels
28j
Frequency
36,000 bph
Power Reserve
69 hours
Year
1978

Related Models

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