Seiko Cal. 6399 - 276

This Automatic model from 1966 features a 38mm Hardlex-Coated Steel case. It features a Navy dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-fe30b118b840]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

27j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1966

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