Seiko Cal. 4438 - 649

This Automatic model from 1978 features a 40mm Two-Tone case. Powered by the 4438 caliber with 23j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-38eaa4938dbe]

Also known as: Turtle, Silverwave

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

White

Jewels

23j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1978

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