Seiko Cal. 6365 - 631

The Seiko 6365-631 represents an important milestone in Seiko's 1968 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-ba43fd6f9939]

Also known as: Turtle, Sumo

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

23j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1968

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