Seiko Cal. 5618 - 738

Seiko 5618-738

The Seiko 5618-738 represents an important milestone in Seiko's 1974 lineup. Powered by the 5618 caliber with 19j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-dd7572ee0e7d]

Also known as: Sumo, Golden Tuna

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
10.9mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
180m
Dial Color
White
Jewels
19j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1974

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