Seiko Cal. 5257 - 461

Seiko 5257-461

The Seiko 5257-461 represents an important milestone in Seiko's 1990 lineup. Powered by the 5257 caliber with 34j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-244b53d23e09]

Also known as: Monster, Helmet

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
34mm
Case Thickness
12.8mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Black
Jewels
34j
Frequency
28,800 bph
Power Reserve
67 hours
Year
1990

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