Seiko Cal. 4430 - 687

Seiko 4430-687

The Seiko 4430-687 represents an important milestone in Seiko's 1977 lineup. It features a White dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-3876bfb14063]

Also known as: Monster, Golden Tuna

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
37mm
Case Thickness
11.6mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
40m
Dial Color
White
Jewels
30j
Frequency
21,600 bph
Power Reserve
45 hours
Year
1977

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