Seiko Cal. 4477 - 642

The Seiko 4477-642 represents an important milestone in Seiko's 1993 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-9bf47e2d6e6f]

Also known as: Sumo, Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

19j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1993

Related Models

• Seiko 6198-106
• Seiko 6237-998
• Seiko 6252-794
• Seiko 7163-889
• Seiko 6269-229
• Seiko 6313-716
• Seiko 6266-204
• Seiko 5226-537
• Seiko 6617-104
• Seiko 7136-319
• Seiko 4410-338
• Seiko 6388-460