Seiko Cal. 4436 - 498

This Spring Drive model from 1999 features a 38mm PVD Black case. Powered by the 4436 caliber with 24j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-737ac411086d]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1999

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