Seiko Cal. 3816 - 643

The Seiko 3816-643 represents an important milestone in Seiko's 1977 lineup. It features a Burgundy dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-056eb9a7ecb7]

Also known as: Turtle

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

35j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1977

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