Seiko Cal. 4436 - 689

This Spring Drive model from 1998 features a 37mm Hardlex-Coated Steel case. With its 20mm lug width and 13.3mm profile, it sits comfortably on most wrists. [seikata-wm-2b6b1f5e07f5]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

13.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Burgundy

Jewels

32j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1998

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