Seiko Cal. 6138 - 666

Seiko 6138-666

The Seiko 6138-666 represents an important milestone in Seiko's 1969 lineup. It features a Cream dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-238c1f359528]

Also known as: Turtle, World Timer

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
13.2mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
30m
Dial Color
Cream
Jewels
31j
Frequency
28,800 bph
Power Reserve
63 hours
Year
1969

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