Seiko Cal. 6371 - 439

Seiko 6371-439

The Seiko 6371-439 represents an important milestone in Seiko's 1981 lineup. Powered by the 6371 caliber with 18j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-bb3126900e06]

Also known as: Turtle, Shogun

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
40mm
Case Thickness
11.2mm
Lug Width
21mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
30m
Dial Color
Green
Jewels
18j
Frequency
36,000 bph
Power Reserve
57 hours
Year
1981

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