Seiko Cal. 5641 - 824

Seiko 5641-824

The Seiko 5641-824 represents an important milestone in Seiko's 1988 lineup. It features a White dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-7ca6a1c3d908]

Also known as: Monster, Helmet

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
8.2mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
200m
Dial Color
White
Jewels
25j
Frequency
36,000 bph
Power Reserve
63 hours
Year
1988

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