Seiko Cal. 4557 - 440

Seiko 4557-440

The Seiko 4557-440 represents an important milestone in Seiko's 1972 lineup. Powered by the 4557 caliber with 19j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-39e7f15b507b]

Also known as: Turtle, Tuna

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
12.5mm
Lug Width
20mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
160m
Dial Color
Silver
Jewels
19j
Frequency
36,000 bph
Power Reserve
45 hours
Year
1972

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