Seiko Cal. 5646 - 738

Seiko 5646-738

This Automatic model from 1988 features a 43mm Stainless Steel case. With its 18mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-0f2bb24d9ef6]

Also known as: Tuna, Sea Horse

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
43mm
Case Thickness
12.7mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
120m
Dial Color
Green
Jewels
19j
Frequency
28,800 bph
Power Reserve
50 hours
Year
1988

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