Seiko Cal. 6397 - 307

This Automatic model from 1965 features a 44mm Hardlex-Coated Steel case. It features a Black dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-d66f71c50b4f]

Also known as: Monster, Rally

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Black

Jewels

25j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1965

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