Seiko Cal. 5638 - 316

The 5638-316 is a sought-after Quartz piece from Seiko's golden era. It features a Burgundy dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-f14512a74ac0]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1989

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