Seiko Cal. 4421 - 358

This Hand-Winding model from 1975 features a 34mm Two-Tone case. Powered by the 4421 caliber with 17j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-8e29c95a6c04]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

17j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1975

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