Seiko Cal. 4523 - 638

Seiko 4523-638

The Seiko 4523-638 represents an important milestone in Seiko's 1988 lineup. Powered by the 4523 caliber with 19j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-299d1b07b19e]

Also known as: Tuna, Golden Tuna

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
35mm
Case Thickness
12.1mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
170m
Dial Color
Green
Jewels
19j
Frequency
21,600 bph
Power Reserve
43 hours
Year
1988

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