Seiko Cal. 6379 - 557

Seiko 6379-557

This Automatic model from 1974 features a 40mm PVD Black case. Powered by the 6379 caliber with 31j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-786e254207c6]

Also known as: Helmet, Navigator

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
40mm
Case Thickness
10.2mm
Lug Width
20mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
70m
Dial Color
White
Jewels
31j
Frequency
21,600 bph
Power Reserve
58 hours
Year
1974

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seikata-wm-786e254207c6