Seiko Cal. 0721 - 421

The Seiko 0721-421 represents an important milestone in Seiko's 1989 lineup. It features a Silver dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-e7ec095181b4]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

15.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

32j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1989

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