Seiko Cal. 5688 - 137

Seiko 5688-137

This Automatic model from 1994 features a 38mm Hardlex-Coated Steel case. Powered by the 5688 caliber with 29j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-af3bf41b7c7f]

Also known as: Baby Tuna

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
13.2mm
Lug Width
18mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
110m
Dial Color
Navy
Jewels
29j
Frequency
28,800 bph
Power Reserve
41 hours
Year
1994

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