Seiko Cal. 5638 - 554

Seiko 5638-554

The Seiko 5638-554 represents an important milestone in Seiko's 1983 lineup. Powered by the 5638 caliber with 31j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-7c839e7755b0]

Also known as: Turtle, Baby Tuna

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
35mm
Case Thickness
11.1mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
50m
Dial Color
Silver
Jewels
31j
Frequency
36,000 bph
Power Reserve
49 hours
Year
1983

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seikata-wm-7c839e7755b0