Seiko Cal. 4413 - 909

This Spring Drive model from 1971 features a 46mm Two-Tone case. Powered by the 4413 caliber with 32j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-542507c80c75]

Also known as: Turtle, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1971

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