Seiko Cal. 5637 - 798

Seiko 5637-798

This Automatic model from 1978 features a 45mm Hardlex-Coated Steel case. Powered by the 5637 caliber with 28j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-26735db8d3c0]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
15.7mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
180m
Dial Color
Burgundy
Jewels
28j
Frequency
28,800 bph
Power Reserve
54 hours
Year
1978

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seikata-wm-26735db8d3c0