Seiko Cal. 5616 - 405

This Solar model from 1988 features a 46mm Two-Tone case. Powered by the 5616 caliber with 36j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-a91a6a2b10be]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

36j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1988

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